Science and hypothesis --
The value of science --
Science and method. Henri Poincaré --
Author's preface to the translation --
Science and hypothesis. Introduction by Royce --
Introduction --
Part I. Number and magnitude. On the nature of mathematical reasoning --
Part II. Space. The non-Euclidean geometrics ; Space and geometry ; Experience and geometry --
Part II. Force. The classic mechanics ; Relative motion and absolute motion ; Energy and thermodynamics --
Part IV. Nature. Hypothesis in physics ; The theories of modern physics ; The calculus of probabilities ; Optics and electricity ; Electrodynamics --
The value of science. Translator's introduction --
Does the scientist create science? --
The mind dispelling optical illusions --
Euclid not necessary --
Without hypothesis, no science --
What outcome? --
Introduction --
Part I. The mathematical sciences. Intuition and logic in mathematics ; The measure of time ; The notion of space ; Space and its three dimensions --
Part II. The physical sciences. Analysis and physics ; Astronomy ; The history of mathematical physics ; The present crisis of mathematical physics ; The future of mathematical physics --
Part III. The objective value of science. Is science artificial? ; Science and reality --
Science and method. Introduction --
Book I. Science and the scientist. The choice of facts ; The future of mathematics ; Mathematical creation ; Chance --
Book II. Mathematical reasoning. The relativity of space ; Mathematical definitions and teaching ; Mathematics and logic ; The new logics ; The latest efforts of the logisticians --
Book III. The new mechanics. Mechanics and radium ; Mechanics and optics ; The new mechanics and astronomy --
Book IV. Astronomic science. The Milky way and the theory of gases ; French geodesy --
General conclusions --
Index.